Steam platen for presses



. MALM.

STEAM PLATEN FUR PRESSES.

APPLICATION HLED DEC.

Patented C. 12, 1920.

2 Shins-SHEET 1.

AN. gn m .m Vv. w m5 T A i 4 A. C. V. MALM.

STEAM PLATEN FOR PRESSES.

APPLlcATmu mio DEC. 22. |919.

Patented Oct. 12, 1920.

2 sHEETs-SHEET 2.

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IN VEN TOR.

xfz 6.1/ ,944

A TTORNEY UNITED STATES PATENT OFFICE. n

AXEL 0. V. MALI, UF LANSDOWNE, PENNSYLVANIA.

STEAK-FLAME' 1:03 PRESSES.

' Application cica nutmegss, me. sum no. stecca.

1 3e it lmown that I, Axni. C. V. Mimi, a citizen of the United States residing at Lansdowne, in the coun Iof IJelaweie and State of Pennsylvanie, ve invented oertain new and useful Im rovements in Steiim-Platens for Presses, o which the following is a specification, reference being had therein to the accompanying drawing.

This invention reletes to steam pletens for presses, such, for example, as the power remos commonly em loyed for curing ruber, bakelite end the 'ke. One object of the invention is to provide a platen of this kind the surface of which may be uickly en uniformly heated by the .opp ication of steam to the interior thereof.

Another object of the inventionis to provide such u device which will be so constructed that a cooling medium; such as water, may be applied thereto inmediately after the steam has been out oii, without distorting the platen or causing the seine to leak or otherwise injuring the same. Other objects of the invention will appear asthe device is described in detail.

In the accompanying drawin Figure 1 is a side elevation of a press, owing my invention applied thereto; Fig. 2 is a. transverse sectional view of o ortion of such a presi taken on 4the line 2- of Fi 1 ;.Fig. 3 1s e plan view of si platen `embo yin my invention; Fig. 4 is n transverse sectionel view of the some; Fig. 5 is a plan view of the inner fece of one of the sections of such :i platen; Fig. 6 is un edge view of the section of Fig. 5; Fig. 7 is a transverse sectional view taken on the line 7-7 of Fig. 5; Fig. 8 is a. plan view of the inner surface of other section of the platen; and F 9. is e transverse sectional view teken on e line 9-9 of the section of Fig. 8.

In these drawings I have illustrated one embodiment of my invention. Iliave shown the seme as applied to n. power press of a well known construction but it will be understood that the invention may be applied to p of various kinds und that it may take various forms, either for the purpose of accommodating it to presses of this kind, or for other purposes.

The press ere shown comprises a. base 1 and a. top plate 2 which is connected to the base by means of vertical rods Mounted on the base 1 is a ram comprisin a head 4 and a. plunger 5 mounted in e cy der 6 in relatively one to ,the other and to the toA curexd plate so that when the material to be es been 'placed between the (platone, and be tween the upper platen au the top plate and the lower platen and the plunger, the upper movement of the rein will cause the several platens to be moved u wardly, one toward the other, and toward t e top plate. The pletens moy be supported in any suitiible manner but in the present construction l'. have provided each platen with ai series of lugs or eers 8, there being preferabl one of ears at each corner of the p ten, which is here shown es nare. Depending from the top plate and rigidly securedy thereto near the respective corners thereof are four rods, or hangers, 9, each of which extends through im opening in the adj scent lu 8, in the upperpost platen. Secured to enc ylug of this'uppermost platen, preferably by mountinthe seme in another opening therein, is e. anger, or rod, 10, which extends through en openin in thecorres ending lug 8 of the next 'ower platen. e lugs of this next lower platen vere else provided with hangers, or rods, 11, which extend through openings in the lugs 8 of the lowermost platen there being 1n the press here shown but three plstens. It will be apperent that each platen is free to move vertically on its hangers sind that the hangers themselves will move vertically with the platens to which they are secured.

Each platen is provided with e chamber ivithin which steam muy circulate and this chamber is so constructed and arrengedthnt the steam will come in Contact with reletively lerge portions of the upper and lower wells of the platen. It is, of course, neces sery that the platen shellY be of u very strong, dureblecherecter und I refer to make the sume cest-steel. To fac 'tete the vmanufacture thercof1` refer to form the same in two sections w ich me be placed fece to fece und rigidly secur one to the other. Each section is provided in its face with channels, the channels of the two sections being so arranged that they will be in communication one with the other and that the ater portions of the inner` surfeces of hloeth sections will be exposed dii'octly to the steam in the channels or both, of the sections, and further, the erran ement is such that tl'iose portions of the sur aces which are not exposed.Y directly to the steam will be relatively small and will be surrounded` by portions which are in contact with the steam. The platen may be of any suitable shape and' the sections may take various forms. In the present construction the platen is substantially square and the sections aierilut. Twosections in the present instance are very similar in their construction: and -tlie lower section which is indicated by the reference numeral l2, carries theV ears 8, while the u pei: sectien,l 13 does not 'we eers. As llas been stated', the channels in thesections may take vaincus formsT but inV the present instance I have shown cach section as having-a channel 1.4 extending. completely about the same near its outer edges. A series oivsubstair tially parallel channels l5 extend' tra-nsvei'sely to tlicsectionl and. communicate at then-'ends with the surrounding channel 14. When the two sections are assembled to form theA platen the channels 15- of the one section extend transversely tothe channels of the other section so that the ribs 16, which separate the channels 15',.wirll1` intersect a-ndrest one upon. the other.. Because of the intersecting arrangement ci the channels it will: he a parent that the steam, or other fluid: Wliic :may be caused toA ciiculate therein, will come diiiectly' in contact with: the channeled Portions of both sem tions and with the inner siuiaces of the ribs wherethey intersect the channels. The only portioneiof the suriiaces which do not come in direct` contact with; theV steam; are thoseportions. of tlleribs whicln intersect and: rest one uponV the other, and these ortions are surnoundeclby the channels. sfu. result of this constructiontlie surfaces o f the platen :we veryr quickly andi very uniformly heated'.A The two sectionsare rigidly securedY onel to the other preferably by means of aV seiiesof screws, L7, which extend through the ribs at' their points of. iiitersection, the ribs being preferably: enlarge-,d` as shown at 18,1 toV provide ample sup ont for the screws` The sections are furtll'ier'secured one to the other by'weldingtheiradjacent edges toltether, referably by electrical? welding.. lis. W ded Joint is not only7 ver strong and. durable but it forms ai perfect y sten-m tight oint between the two sections, Consequent y the platen is: of a viei'yl strong, dumbleconstruction and: will' not bez iniiu'iouslyaffected by' the in'eetionlof a cooli -medium into the channe sfimmecliiitel s figer the steam. is cut olf and. while theplaten. isl still hot.V The manner of connectingthetwo sections; as well asthe constructionof the'two sections is Vauch.` that there will be little orne tendency of one,

to warp or become distorted by the sudden changes in temperature and the wedded l'oints at the ed'ges ofthe sections will not be iable toy break and thus cause lea-ka A further advantage of the welded joints is that it docs away with all packing, between the two sections. Not only is the platen as here constructed: highly eflicient and of a stron durable character, but it can be i'eadi y and cheaplyl manuactureclf as the sections une each cast inl one piece' aiicl-l very little. machine work is required?. t

The' pleiten may be provided with an inlet' and an outlet of any suitable cl'iaracter andl arrangement. In the resent instance l' have slmwn two orts, 1'9- ending through the eclfre of the i atenan communicating with tli'e outer c 'annelf nl;y Ifn4 the present arrangement the'ports'are li'otli.4 afrranfred in tliesiuneedge ofthe-platen and! are at opted to have steam pipes connected therewith. Preferably the outlet of one platen is conl` nected' with the inlet of the' other so`- that the steam. passes in series-through the several platane- Obviously theA top plate and the .head 4 of the rain' may be constructed in a' similarmanner and may, iif: desired; be connected; in; series with: the platene.

While l: have shown and described one embodiment omy invention, l? wish it tothe niideisto'orl that f do not desire to be limL itedto' the details thereon as various modiications may occa-1'. to a person skilledI in thwart;

Havinfv now fully described my'imvention, what I c ainiaasmei'c' andi desire to secure by Letters Patentl is:

1. :t device of' the character described com rismgtwo sections placedc face tofaice, rigi y connected on'etox the' other and havi-n=g channelsv in. their adiacenti faces so' arranged that the channels in one section `vill connnunicate with the channels inthe other section,y and having inlet and outlet ports leading to and' from'tlie channels- 2. A device ot the character'described comllrisng two sections laced' face tol iz'ioe andA :wing channels in I einadjacent4 faces se arrangedI that the channels in' one section will communicate with the-channels in the other section, and? having inlet sindy outlet oi'ts leading to and! from said? channels, sai lsections bem'gvfconnected.one'totlieoih'er to form steam tig 'it 'pints-at their edges.

3i A device* of 'e character' described com risingftwofeections ylaced faceta-fece and :wing channels-im eilr adgacent faces so arrangedl that the channels inone seetion willi communicate with the channels in the other section, andlawing and outlet* ortsdeading'to andI from sai'clf channels, sai sectionsbem'g weldedionetot'leotherat 4i A svice of the characterv described comprising; twosections placedeceto face,

each section having substantially parallel channels and the channels of the two sections extending transversely one to the other, said device also having inlet and outlet ports leading to and from said channels, and said sections being connected one to the other to form steam tight joints at their edges.

5. A device of the character described comprising two sections placed face to face, rigidly connected one to the other and having channels Kin their ad`acent faces, the channels in the one section eing arranged to intersect the channels in the other section, said device also having inlet and outlet ports leading to and from said channels.

6. A device of the character described comprising two sections placed face to face, rigidly secured one to the other and each having in its inner 'face a channel extending about the saine near the edges thereof and other channels extending across the same and communicating Withthe first mentioned channel, the last mentioned channels of one section intersecting the corresponding channels of the other section, and inlet and outlet ports leading to and from said channels.

7. A device of the character described comprising two flat sections of corresponding shape placed face to face and each having in its inner face a channel extending entirely about the saine near the outer edge thereof and other channels communicating at their ends with the irst mentioned channel, the several channels ot' the one section being arranged to communicate with the corresponding channels of the other section, and inlet and outlet ports leading to and from said channels, said sections being rigidlv connected one to the other to form steam tight joints at their edges.

H. A device of the character described comprising two .sections placed face to face and, having channelsl in their adjacent faces so arranged that the channels in one section will communicate vvith the channels in the other section and having inlet and outlet ports leading to and from said channels,

said sections being Welded one to the other at their edges, and fastening devices connecting intermediate portions of said sections one to the other.

9. A device of the character. described comprising two sections placed face to face and each having in its inner face a channel extendingr about the same near the edges thereof, and substantially parallel channels commrmicating at their opposite ends with the first mentioned channel, the last mentioned channels of the one section extending transversely to the channels of the other, and inlet and outlet ports leading to and from said channels, said sections being welded one to the other along their edges.

l0. A device of the character described comprising two sections placed face to face, each section having in its inner face a channel attending about the same near the edge thereof, and' having transverse channels communicating at their ends with the first mentioned channel and separated by ribs and the ribs of the two sections intersecting and resting one upon the other, said sections being connected one to the other to form steam tight joints at their edges.

il. A device of the character described comprising two sections placed face to face, each section having in its inner face a channel extending about the same near the edge thereof, and having transverse channels comnnlnicating at their ends with the iirst mentioned channel and separated by ribs, the ribs of the two sections intersecting and resting one upon the other, and fastening devicesextending through intersecting portions of said ribs.

In testimony whereof I aiiix my signature hereto.

AXEL C. V. MALM. 

